Advance Mobile& Web Application Development Using Angular and Native Script Node JS 0.5
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Extending Basic Block Versioning with Typed Object Shapes
Extending Basic Block Versioning with Typed Object Shapes Maxime Chevalier-Boisvert Marc Feeley DIRO, Universite´ de Montreal,´ Quebec, Canada DIRO, Universite´ de Montreal,´ Quebec, Canada [email protected] [email protected] Categories and Subject Descriptors D.3.4 [Programming Lan- Basic Block Versioning (BBV) [7] is a Just-In-Time (JIT) com- guages]: Processors—compilers, optimization, code generation, pilation strategy which allows rapid and effective generation of run-time environments type-specialized machine code without a separate type analy- sis pass or complex speculative optimization and deoptimization Keywords Just-In-Time Compilation, Dynamic Language, Opti- strategies (Section 2.4). However, BBV, as previously introduced, mization, Object Oriented, JavaScript is inefficient in its handling of object property types. The first contribution of this paper is the extension of BBV with Abstract typed object shapes (Section 3.1), object descriptors which encode type information about object properties. Type meta-information Typical JavaScript (JS) programs feature a large number of object associated with object properties then becomes available at prop- property accesses. Hence, fast property reads and writes are cru- erty reads. This allows eliminating run-time type tests dependent on cial for good performance. Unfortunately, many (often redundant) object property accesses. The target of method calls is also known dynamic checks are implied in each property access and the seman- in most cases. tic complexity of JS makes it difficult to optimize away these tests The second contribution of this paper is a further extension through program analysis. of BBV with shape propagation (Section 3.3), the propagation We introduce two techniques to effectively eliminate a large and specialization of code based on object shapes. -
THE FUTURE of SCREENS from James Stanton a Little Bit About Me
THE FUTURE OF SCREENS From james stanton A little bit about me. Hi I am James (Mckenzie) Stanton Thinker / Designer / Engineer / Director / Executive / Artist / Human / Practitioner / Gardner / Builder / and much more... Born in Essex, United Kingdom and survived a few hair raising moments and learnt digital from the ground up. Ok enough of the pleasantries I have been working in the design field since 1999 from the Falmouth School of Art and onwards to the RCA, and many companies. Ok. less about me and more about what I have seen… Today we are going to cover - SCREENS CONCEPTS - DIGITAL TRANSFORMATION - WHY ASSETS LIBRARIES - CODE LIBRARIES - COST EFFECTIVE SOLUTION FOR IMPLEMENTATION I know, I know, I know. That's all good and well, but what does this all mean to a company like mine? We are about to see a massive change in consumer behavior so let's get ready. DIGITAL TRANSFORMATION AS A USP Getting this correct will change your company forever. DIGITAL TRANSFORMATION USP-01 Digital transformation (DT) – the use of technology to radically improve performance or reach of enterprises – is becoming a hot topic for companies across the globe. VERY DIGITAL CHANGING NOT VERY DIGITAL DIGITAL TRANSFORMATION USP-02 Companies face common pressures from customers, employees and competitors to begin or speed up their digital transformation. However they are transforming at different paces with different results. VERY DIGITAL CHANGING NOT VERY DIGITAL DIGITAL TRANSFORMATION USP-03 Successful digital transformation comes not from implementing new technologies but from transforming your organisation to take advantage of the possibilities that new technologies provide. -
Onclick Event-Handler
App Dev Stefano Balietti Center for European Social Science Research at Mannheim University (MZES) Alfred-Weber Institute of Economics at Heidelberg University @balietti | stefanobalietti.com | @nodegameorg | nodegame.org Building Digital Skills: 5-14 May 2021, University of Luzern Goals of the Seminar: 1. Writing and understanding asynchronous code: event- listeners, remote functions invocation. 2. Basic front-end development: HTML, JavaScript, CSS, debugging front-end code. 3. Introduction to front-end frameworks: jQuery and Bootstrap 4. Introduction to back-end development: NodeJS Express server, RESTful API, Heroku cloud. Outputs of the Seminar: 1. Web app: in NodeJS/Express. 2. Chrome extensions: architecture and examples. 3. Behavioral experiment/survey: nodeGame framework. 4. Mobile development: hybrid apps with Apache Cordova, intro to Ionic Framework, progressive apps (PWA). Your Instructor: Stefano Balietti http://stefanobalietti.com Currently • Fellow in Sociology Mannheim Center for European Social Research (MZES) • Postdoc at the Alfred Weber Institute of Economics at Heidelberg University Previously o Microsoft Research - Computational Social Science New York City o Postdoc Network Science Institute, Northeastern University o Fellow IQSS, Harvard University o PhD, Postdoc, Computational Social Science, ETH Zurich My Methodology Interface of computer science, sociology, and economics Agent- Social Network Based Analysis Models Machine Learning for Optimal Experimental Experimental Methods Design Building Platforms Patterns -
Angularjs Native Rich Clients with Eclipse RCP WEB APPS UNTIL NOW
Die Grundlagen Philipp Burgmer theCodeCampus / Weigle Wilczek GmbH ABOUT ME Philipp Burgmer Software Engineer / Consultant / Trainer Focus: Frontend, Web Technologies WeigleWilczek GmbH [email protected] ABOUT US WeigleWilczek / W11k Software Design, Development & Maintenance Consulting, Trainings & Project Kickoff Web Applications with AngularJS Native Rich Clients with Eclipse RCP WEB APPS UNTIL NOW JSF UI on Server A lot HTTP Requests Just to Update UI Hard to Use JS Libs / Scatters UI Logic GWT UI in Java / XML Hard to Use JS Libs / Scatters UI Logic "Java World" Instead of "Web World" Flex Clean Separation of Front- and Backend Based on Flash, Adobe Discontinues Developement MXML and ActionScript Instead of HTML and JavaScript WEB APPS FROM NOW ON Frontend Runs Completely in the Browser Stateful UI, Stateless Server Server Delivers Static Resources Server Delivers Dynamic Data HTML, CSS and JavaScript as UI Toolkit WHAT IS ANGULARJS? HTML Enhanced for Web Apps angularjs.com Client / Browser JS Framework Rich Browser Applications Brings Core Frontend Concepts and Features to the Browser Extends HTML Instead of Abstracting or Wrapping It angularjs.org Current Versions: 1.2.23 and 1.3.0-beta.19 License: MIT CORE CONCEPTS Model View Controller Modules Pattern Dependency Injection Two Way Data-Binding Services Directives Filter Goals Separation of Concerns Make It Easier to Write Clean Code Make It Easier to Write Testable Code Offer Concepts and Be Open for Extensions DEMO Two Way Data-Binding [ JS Bin | localhost ] Add Logic with a Controller -
Download Ebook ^ Javascript: Ajax, Cross-Site Scripting, Couchdb
W5CAMG0U1NWQ < PDF ^ JavaScript: Ajax, Cross-Site Scripting, CouchDB, WebKit, JQuery, Dojo Toolkit, Bookmarklet, ActionScript, V8,... JavaScript: A jax, Cross-Site Scripting, Couch DB, W ebKit, JQuery, Dojo Toolkit, Bookmarklet, A ctionScript, V 8, SpiderMonkey, Qooxdoo, Ext JS Filesize: 7.09 MB Reviews It becomes an amazing book which i actually have at any time study. It is actually loaded with wisdom and knowledge You wont sense monotony at at any time of your respective time (that's what catalogues are for regarding should you request me). (Rosina Schowalter V) DISCLAIMER | DMCA EUQW6UIGSWMD > Kindle « JavaScript: Ajax, Cross-Site Scripting, CouchDB, WebKit, JQuery, Dojo Toolkit, Bookmarklet, ActionScript, V8,... JAVASCRIPT: AJAX, CROSS-SITE SCRIPTING, COUCHDB, WEBKIT, JQUERY, DOJO TOOLKIT, BOOKMARKLET, ACTIONSCRIPT, V8, SPIDERMONKEY, QOOXDOO, EXT JS Books LLC, Wiki Series, 2011. Condition: New. This item is printed on demand for shipment within 3 working days. Read JavaScript: Ajax, Cross-Site Scripting, CouchDB, WebKit, JQuery, Dojo Toolkit, Bookmarklet, ActionScript, V8, SpiderMonkey, Qooxdoo, Ext JS Online Download PDF JavaScript: Ajax, Cross-Site Scripting, CouchDB, WebKit, JQuery, Dojo Toolkit, Bookmarklet, ActionScript, V8, SpiderMonkey, Qooxdoo, Ext JS R6UOTKQRMAXT « PDF \ JavaScript: Ajax, Cross-Site Scripting, CouchDB, WebKit, JQuery, Dojo Toolkit, Bookmarklet, ActionScript, V8,... See Also A Smarter Way to Learn JavaScript: The New Approach That Uses Technology to Cut Your Effort in Half Createspace, United States, 2014. Paperback. Book Condition: New. 251 x 178 mm. Language: English . Brand New Book ***** Print on Demand *****.The ultimate learn-by-doing approachWritten for beginners, useful for experienced developers who want to... Read PDF » Why We Hate Us: American Discontent in the New Millennium Random House USA Inc, United States, 2009. -
Comparing Javascript Engines
Comparing Javascript Engines Xiang Pan, Shaker Islam, Connor Schnaith Background: Drive-by Downloads 1. Visiting a malicious website 2. Executing malicious javascript 3. Spraying the heap 4. Exploiting a certain vulnerability 5. Downloading malware 6. Executing malware Background: Drive-by Downloads 1. Visiting a malicious website 2. Executing malicious javascript 3. Spraying the heap 4. Exploiting a certain vulnerability 5. Downloading malware 6. Executing malware Background: Drive-by Downloads Background: Drive-by Downloads Setup: Making the prototype null while in the prototype creates a pointer to something random in the heap. Background: Drive-by Downloads Environment: gc( ) is a function call specific to Firefox, so the attacker would want to spray the heap with an exploit specific to firefox. Background: Drive-by Downloads Obfuscation: If the browser executing the javascript it firefox,the code will proceed to the return statement. Any other browser will exit with an error due to an unrecognized call to gc( ). Background: Drive-by Downloads Download: The return will be to a random location in the heap and due to heap-spraying it will cause shell code to be executed. Background: Goal of Our Project ● The goal is to decode obfuscated scripts by triggering javascript events ● The problem is when triggering events, some errors, resulting from disparity of different engines or some other reasons, may occur and terminate the progress ● We need to find ways to eliminate the errors and Ex 1therefore generate more de-obfuscated scripts <script> function f(){ //some codes gc(); var x=unescape(‘%u4149%u1982%u90 […]’)); eval(x); } </script> Ex 2 <script type="text/javascript" src="/includes/jquery/jquery.js"></script> Project Overview - Part One ● Modify WebKit engine so that it can generate error informations. -
Demystifying V8 and Javascript Performance Twitter @Thlorenz | Github @Thlorenz | Irc Thlorenz Data Types
Demystifying v8 and JavaScript Performance twitter @thlorenz | github @thlorenz | irc thlorenz Data Types ECMA defines data types v8 maps them to optimized data types Primitive Types Boolean Number String Null Undefined ! • Reference Types Object Array Typed Array Number ECMA double-precision 64-bit binary format IEEE 754 value v8 32-bit numbers to represent all values • ECMAScript standard: • number between -(2^53 -1) and 2^53 -1 • no specific type for integers • can represent floating-point numbers • three symbolic values: +Infinity, -Infinity, and NaN Tagging 32 bit signed integer (SMI) object pointer Tagging 31 bit signed integer (SMI) 0 object pointer 1 • numbers bigger than 31 bits are boxed • stored inside an object referenced via a pointer • adds extra overhead (at a minimum an extra lookup) • prefer SMIs for numeric values whenever possible • Objects Object Fixed Array Fixed Array Map Map Map Extra Properties Length Length Elements Property “poo” Property “0” Property “foo” Property “baz” Property “1” Property “bar” • above shows most common optimized representation • all blocks have a Map property describing their structure • most objects contain all their properties in single block of memory "foo", “bar" • object is a collection of properties aka key-value pairs • named properties that don't fit are stored in overflow array "poo", "baz" • numbered properties are stored in a separate contiguous array "1", “2" Objects Object Map Extra Properties Elements Property “foo” Property “bar” • property names are always strings • any name -
Comparison of Javascript Frontend Frameworks and Web API Services Samarth Maganahalli1, Prof
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 06 | June 2020 www.irjet.net p-ISSN: 2395-0072 Comparison of JavaScript Frontend Frameworks and Web API Services Samarth Maganahalli1, Prof. Rashmi R2 1Information Science and Engineering Dept., R. V. College of Engineering, Bengaluru, India 2Assistant Professor, Information Science and Engineering Dept., R. V. College of Engineering, Bengaluru, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - In this era of constant innovation and technology may not always have prior knowledge of web services before developments, some tools have stayed for long while many they actually use it, therefore Web Services are platform others have faded or have been dominated by newer independent and loosely coupled. There are two major types technologies. However, we would all be able to concur that the of web services being used – SOAP principles based, and JavaScript programming language will be staying for a very REST principles based. In the following sections, a long term. This astounding bit of technology is cherished by comparison is drawn between the two and why RESTful web millions for its adaptability — it very well may be deployed on services have better performance. both the server side and customer side, utilized for mobile 2. LITERATURE SURVEY applications as well as desktop. Hence, in this period, picking a tech stack has become a tedious task. Each factor - project Detailed study of the background, the internal structure and objectives, resources, time, app size, end-users and budget thorough analysis was carried out of each of the 3 front-end need to be considered. -
Angularjs in 60 Minutes
AngularJS in 60 Minutes by Dan Wahlin Transcription and Arrangement by Ian Smith © 2013, 2014 Wahlin Consulting 1 | P a g e Video Length: 01:10:49 So you’ve heard about AngularJS, but you’re not exactly sure how to get started with it? This video’s for you. AngularJS Fundamentals in 60-ish Minutes is going to go through all of the key fundamentals you need to know about the AngularJS SPA framework. Video: http://www.youtube.com/watch?v=i9MHigUZKEM Disclaimer: The original content is copyright of the original “free to download” video published as indicated by the link to the original source material above. Any mistakes, opinions or views in that content are those of the original presenter. Any mistakes in the actual transcription of that content are the fault of the transcriber. © 2013, 2014 Wahlin Consulting 2 | P a g e Contents AngularJS in 60 Minutes .......................................................................................................................... 1 Introduction ............................................................................................................................................ 4 Module 1: Getting Started .................................................................................................................... 15 Single Page Application (SPA) ........................................................................................................... 16 The Challenge With SPAs ................................................................................................................. -
Angularjs Tutorial
AngularJS Tutorial Sunnie Chung http://www.w3schools.com/angular/angular_intro.asp http://www.w3schools.com/angular/angular_modules.asp http://www.w3schools.com/angular/angular_http.asp http://www.w3schools.com/angular/angular_sql.asp AngularJS is a JavaScript framework . It can be added to an HTML page with a <script> tag. AngularJS extends HTML attributes with Directives , and binds data to HTML with Expressions . AngularJS is a JavaScript Framework AngularJS is a JavaScript framework. It is a library written in JavaScript. AngularJS is distributed as a JavaScript file, and can be added to a web page with a script tag: <script src ="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js">< / script > AngularJS Extends HTML AngularJS extends HTML with ng-directives . The ng-app directive defines an AngularJS application. The ng-model directive binds the value of HTML controls (input, select, textarea) to application data. The ng-bind directive binds application data to the HTML view. AngularJS Example <!DOCTYPE html > <html > <script src ="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js">< / script > <body > <div ng-app =""> <p>Name: <input type ="text" ng-model ="name">< /p > <p ng-bind ="name">< /p > </div > </body > </html > Example explained: AngularJS starts automatically when the web page has loaded. The ng-app directive tells AngularJS that the <div> element is the "owner" of an AngularJS application . The ng-model directive binds the value of the input field to the application variable name . The ng-bind directive binds the innerHTML of the <p> element to the application variable name . -
Git Services
Git Services Wakanda includes Git features that will help you manage the evolution of your solutions and files. These features are designed to share code as well as to handle multi‐developer projects and solutions. Note: Git is a distributed revision control and source code management system. For more information about Git, please refer to the Git page on Wikipedia or go to the Git official website. Overview Why Use Git? As explained on the Git official website, Git is a distributed revision control and source code management system. Integrated in Wakanda, it basically addresses three main issues regarding project management: Revision control (or source control): Using Git, you can track and take control over changes to your source code. This means that you can go back in your version change‐history, check and revert modifications, merge different versions, and so on. Remote development: Using Git, you can work on a solution locally and deliver it at any time to your remote Wakanda production server. Multi‐user development: Using Git, several developers can work on the same project and share modifications through smart push and pull commands. Potentiel conflicts are handled through advanced features that allow you to merge, edit or ignore modifications. Git Main Features Git implementation in Wakanda provides you with the following main features, mainly available through the Git button menu in the Wakanda Studio toolbar: Commit locally: This is the basic Git feature. Commiting means taking an instant picture of your application files and thus being able to compare, revert or push them to remote locations. -
A Little on V8 and Webassembly
A Little on V8 and WebAssembly An V8 Engine Perspective Ben L. Titzer WebAssembly Runtime TLM Background ● A bit about me ● A bit about V8 and JavaScript ● A bit about virtual machines Some history ● JavaScript ⇒ asm.js (2013) ● asm.js ⇒ wasm prototypes (2014-2015) ● prototypes ⇒ production (2015-2017) This talk mostly ● production ⇒ maturity (2017- ) ● maturity ⇒ future (2019- ) WebAssembly in a nutshell ● Low-level bytecode designed to be fast to verify and compile ○ Explicit non-goal: fast to interpret ● Static types, argument counts, direct/indirect calls, no overloaded operations ● Unit of code is a module ○ Globals, data initialization, functions ○ Imports, exports WebAssembly module example header: 8 magic bytes types: TypeDecl[] ● Binary format imports: ImportDecl[] ● Type declarations funcdecl: FuncDecl[] ● Imports: tables: TableDecl[] ○ Types memories: MemoryDecl[] ○ Functions globals: GlobalVar[] ○ Globals exports: ExportDecl[] ○ Memory ○ Tables code: FunctionBody[] ● Tables, memories data: Data[] ● Global variables ● Exports ● Function bodies (bytecode) WebAssembly bytecode example func: (i32, i32)->i32 get_local[0] ● Typed if[i32] ● Stack machine get_local[0] ● Structured control flow i32.load_mem[8] ● One large flat memory else ● Low-level memory operations get_local[1] ● Low-level arithmetic i32.load_mem[12] end i32.const[42] i32.add end Anatomy of a Wasm engine ● Load and validate wasm bytecode ● Allocate internal data structures ● Execute: compile or interpret wasm bytecode ● JavaScript API integration ● Memory management